%0 Journal Article %E Peter L. Bernstein %T The Time Dimension of Risk %D 1993 %R 10.3905/jpm.20.1.1 %J The Journal of Portfolio Management %P 1-1 %V 20 %N 1 %U https://jpm.pm-research.com/content/iijpormgmt/20/1/1.full.pdf